20618040

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{9043}}^1$

素因数の和:9076

約数の個数: 64

約数和(自身を含む): 65116800

約数和(自身を除く): 44498760

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 19, 20, 24, 30, 38, 40, 57, 60, 76, 95, 114, 120, 152, 190, 228, 285, 380, 456, 570, 760, 1140, 2280, 9043, 18086, 27129, 36172, 45215, 54258, 72344, 90430, 108516, 135645, 171817, 180860, 217032, 271290, 343634, 361720, 515451, 542580, 687268, 859085, 1030902, 1085160, 1374536, 1718170, 2061804, 2577255, 3436340, 4123608, 5154510, 6872680, 10309020, 20618040]

約数ペア:

[(1, 20618040), (2, 10309020), (3, 6872680), (4, 5154510), (5, 4123608), (6, 3436340), (8, 2577255), (10, 2061804), (12, 1718170), (15, 1374536), (19, 1085160), (20, 1030902), (24, 859085), (30, 687268), (38, 542580), (40, 515451), (57, 361720), (60, 343634), (76, 271290), (95, 217032), (114, 180860), (120, 171817), (152, 135645), (190, 108516), (228, 90430), (285, 72344), (380, 54258), (456, 45215), (570, 36172), (760, 27129), (1140, 18086), (2280, 9043)]